Study of Drive System Based on Permanent Magnet Synchronous Motor in Electric Vehicle
As the vehicles account in the world in the world increases sharply, traditional vehicles which use internal combustion engines bring us great facilitation, but at the same time, they do more damages to our environment. Electric vehicle, which takes electrical energy as its power, has quite wide foreground because of its zero-let and non-pollution. The drive motor and its control system are hard core in the power system of electric vehicle. The control system and its fuzzy control of permanent magnet synchronous motor based on DSP are researched and designed in this thesis.Permanent magnet synchronous motor applied in the electric vehicles is used as the object of study in this article, the http://www.999magnet.com/products/103-ceramic-magnets structure feature of permanent magnet synchronous motor is analysized firstly. Then the mathematical model is established by Rotor coordinate axis in foundation of vector control. Then vector control system structure drawing of permanent magnet synchronous motor is given, and the current controller and speed controller are studied in control system of permanent magnet synchronous motor. Meanwhile, the speed controller will be improved and one design based on the fuzzy PI speed controller is proposed. the fuzzy control is applied in control system of permanent magnet synchronous motor. The merit is displayed fully in the thought which the fuzzy control and the PI control combine in this design, the fuzzy control is used for realizing the macrocontrol to achieve the fast control, and the PI control is used for realizing the microcontrol to achieve the accuracy control.Permanent magnet synchronous motor control system simulation model is constructed under MATLAB/SIMULINK simulation environment, and the SVPWM vector control system is carried on the simulation. Meanwhile fuzzy PI controller application in permanent magnet synchronous motor control system is conducted the simulation research. The simulation results indieate that The fuzzy PI speed control contrasts the PI speed control, the system response speed has the remarkable enhancement, tendency and static property of the motor control system can be improved, and it is suitable for working request of the electric vehicle. At last, concrete hardware and software design of Permanent magnet synchronous motor control system are designed. the DSP2000 series chip is used in the hardware design for the motor control. The hardware circuit mainly includes: Main return route, driving circuit of IPM, the electric circuit of examination, protection circuit, accelerator and files position electric circuits and so on. In software design aspect, master routine and the interrupt service are desinged through using the C language and assembly language mix programming method, and PWM interrupt servicing module and breakdown interrupt servicing module detail flowchart are given. Simultaneously the detailed theory is made by the modulation aproach of space voltage vector, And the switch pattern is determined by the hardware. At last antijamming measures of hard and software designs have also been given simultaneously. 更多还原
2013年4月16日星期二
Hybrid Electric Vehicle Driving Research Based on Interior Permanent Magnet Synchronous Motor
Hybrid Electric Vehicle Driving Research Based on Interior Permanent Magnet Synchronous Motor
Energy crisis and environmental deterioration are two important problems of global development.The design of low energy consumption and low emissions vehicle can abate the pressure of energy absence and improve the quality of environment.Hybrid electric vehicle(HEV) has many advantages,such as low energy consumption,low emissions,long drive distance etc.HEV has become an active research aera.So it is imperative to develop the HEV and the new motor driving control system.The structures and features of the three hybrid power systems were analyzed and compared in this paper,the serial and parallel hybrid electric vehicle(SPHEV) had been chosen.After the driving features http://www.999magnet.com/products/110-sintered-neodymium-magnets of the motors were analyzed and compared, the Interior Permanent Magnet Synchronous Machine(IPMSM) was chose as the driving motor.The engine and battery of HEV were also analyzed simply in this paper.Based on SPHEV structure and IPMSM driving motor,two IPMSM(MG1 and MG2) had been selected and the main parameters of IPMSM were designed.Some stimulations and analyses of the main work status of two IPMSMs were done.Otherwise the hardware and software of IPMSM were designed.DSP is as center control unit in the hardware platform and control system is established integrally after the software is designed.At last,in simulation software Advisor,parameters’ setting,simulation modules’ mathematical description,modules’ building had been mainly discussed.The secondary developments for the designed composite SPHEV had been done based on the Prius SPHEV in Advisor.The vehicle,generator,motor and composite power module had been shown.The simulation results had proved the feasibility of the control strategy.The analyzed results showed that One-Hundred-Kilometer Fuel Consumption and emission of the vehicle can meet the needs of vehicle development and greatly improve the energy saving and environmental protection. 更多还原
Energy crisis and environmental deterioration are two important problems of global development.The design of low energy consumption and low emissions vehicle can abate the pressure of energy absence and improve the quality of environment.Hybrid electric vehicle(HEV) has many advantages,such as low energy consumption,low emissions,long drive distance etc.HEV has become an active research aera.So it is imperative to develop the HEV and the new motor driving control system.The structures and features of the three hybrid power systems were analyzed and compared in this paper,the serial and parallel hybrid electric vehicle(SPHEV) had been chosen.After the driving features http://www.999magnet.com/products/110-sintered-neodymium-magnets of the motors were analyzed and compared, the Interior Permanent Magnet Synchronous Machine(IPMSM) was chose as the driving motor.The engine and battery of HEV were also analyzed simply in this paper.Based on SPHEV structure and IPMSM driving motor,two IPMSM(MG1 and MG2) had been selected and the main parameters of IPMSM were designed.Some stimulations and analyses of the main work status of two IPMSMs were done.Otherwise the hardware and software of IPMSM were designed.DSP is as center control unit in the hardware platform and control system is established integrally after the software is designed.At last,in simulation software Advisor,parameters’ setting,simulation modules’ mathematical description,modules’ building had been mainly discussed.The secondary developments for the designed composite SPHEV had been done based on the Prius SPHEV in Advisor.The vehicle,generator,motor and composite power module had been shown.The simulation results had proved the feasibility of the control strategy.The analyzed results showed that One-Hundred-Kilometer Fuel Consumption and emission of the vehicle can meet the needs of vehicle development and greatly improve the energy saving and environmental protection. 更多还原
2013年4月8日星期一
Position Control for a Permanent Magnet Linear Synchronous Motor Based on Disturbance Observer
Position Control for a Permanent Magnet Linear Synchronous Motor Based on Disturbance Observer
Linear feeding system cancels all the middle transmission links from the motor to the worktable and makes the transmission links of feeding system zero. "Zero-transmission" of feeding system has been obtained, which makes linear servo motor drive system apply widely in many aspects. But during the period that linear system moving as to all kinds of interior and exterior reasons, its parameter and exterior disturbance have large uncertainty. Owing to this uncertainty, control quality of system may decrease badly. In allusion to influence of mover mass variety disturbance, http://www.999magnet.com/products/103-ceramic-magnets outside disturbance and friction disturbance under low speed to servo system, some studies have been done and relevant schemes has been put forward.At first, based on reading many domestic and international relative literatures the improvements of linear feeding system are overviewed; the domestic and international research status of permanent magnet linear synchronous motor (PMLSM) feeding system robust control are outlined; the control schemes of PMLSM servo system are described. Secondly, based on the analyzing the basic structure and work principle of PMLSM, the vector control principle is introduced; the mathematic model of PMLSM is established; the influences of main disturbance factors of linear motor servo control system to the dynamic qualities are analyzed simply. In allusion to disturbance, a disturbance observer based on inverse dynamic equations of controlled systems is designed, the thrust is feedforward by the disturbance observer to resist disturbance outside and improve the robustness of system.
In allusion to mover mass variety disturbance, methods of disperse model reference adapt identification and self-tuning of position controller parameters are adopted, the current value of identifying mover mass is sent to the position controller and disturbance observer to amend parameters in the controller and update the mover mass parameter in disturbance observer. The system shows good dynamic and static performance when mover mass changes through this control strategy. In allusion to nonlinear friction which can decrease servo system track performance, the model reference adaptive system based on Coulomb friction is designed to compensation the friction on-line. The designed model reference adaptive parameter identifier is combined with the adaptive friction compensation system, the mover mass identified by the parameter identifier is used to update mover mass in the model reference adaptive control system based on Coulomb friction.Simulation results show that the position tracking precision of system and robustness are improved through the control scheme proposed in this paper, which could meet the requirement for high-precision numerical control machines. 更多还原
Linear feeding system cancels all the middle transmission links from the motor to the worktable and makes the transmission links of feeding system zero. "Zero-transmission" of feeding system has been obtained, which makes linear servo motor drive system apply widely in many aspects. But during the period that linear system moving as to all kinds of interior and exterior reasons, its parameter and exterior disturbance have large uncertainty. Owing to this uncertainty, control quality of system may decrease badly. In allusion to influence of mover mass variety disturbance, http://www.999magnet.com/products/103-ceramic-magnets outside disturbance and friction disturbance under low speed to servo system, some studies have been done and relevant schemes has been put forward.At first, based on reading many domestic and international relative literatures the improvements of linear feeding system are overviewed; the domestic and international research status of permanent magnet linear synchronous motor (PMLSM) feeding system robust control are outlined; the control schemes of PMLSM servo system are described. Secondly, based on the analyzing the basic structure and work principle of PMLSM, the vector control principle is introduced; the mathematic model of PMLSM is established; the influences of main disturbance factors of linear motor servo control system to the dynamic qualities are analyzed simply. In allusion to disturbance, a disturbance observer based on inverse dynamic equations of controlled systems is designed, the thrust is feedforward by the disturbance observer to resist disturbance outside and improve the robustness of system.
In allusion to mover mass variety disturbance, methods of disperse model reference adapt identification and self-tuning of position controller parameters are adopted, the current value of identifying mover mass is sent to the position controller and disturbance observer to amend parameters in the controller and update the mover mass parameter in disturbance observer. The system shows good dynamic and static performance when mover mass changes through this control strategy. In allusion to nonlinear friction which can decrease servo system track performance, the model reference adaptive system based on Coulomb friction is designed to compensation the friction on-line. The designed model reference adaptive parameter identifier is combined with the adaptive friction compensation system, the mover mass identified by the parameter identifier is used to update mover mass in the model reference adaptive control system based on Coulomb friction.Simulation results show that the position tracking precision of system and robustness are improved through the control scheme proposed in this paper, which could meet the requirement for high-precision numerical control machines. 更多还原
Power Maximization Control of Wind Generation System Using Permanent Magnet Synchronous Generator
Power Maximization Control of Wind Generation System Using Permanent Magnet Synchronous Generator
The efficient utilization of natural energy has attracted much attention recently in the context of depletion of energy sources and other environmental problems. In particular, wind power generation systems have been developed and implemented due to the renewability and cleanness of wind energy.This study deals with a variable-speed power generation system using permanent magnet synchronous generator (PMSM). In particular, a new PMSM control system is proposed for maximally efficient utilization of wind energy to assure maximum output. The relationship of current with loss of http://www.999magnet.com/products/110-sintered-neodymium-magnets PMSM is achieved by mathematical model considering the copper loss and iron loss. Based on the model, the efficiency-optimized control is presented and applied to wind generation system. The wind turbine settles down on the maximum power point tracking (MPPT) control method. The maximum available generated power is obtained by the optimum current vector control considering the converter capacity and the losses of generator.Then this paper tries to apply the sensorless control to PMSM. A novel sensorless control strategy is presented for PMSM and the validity of the strategy is confirmed by the experiment.At last, this paper summarized the system and gave the analysis and the prospect for future research about wind generation using PMSM. 更多还原
The efficient utilization of natural energy has attracted much attention recently in the context of depletion of energy sources and other environmental problems. In particular, wind power generation systems have been developed and implemented due to the renewability and cleanness of wind energy.This study deals with a variable-speed power generation system using permanent magnet synchronous generator (PMSM). In particular, a new PMSM control system is proposed for maximally efficient utilization of wind energy to assure maximum output. The relationship of current with loss of http://www.999magnet.com/products/110-sintered-neodymium-magnets PMSM is achieved by mathematical model considering the copper loss and iron loss. Based on the model, the efficiency-optimized control is presented and applied to wind generation system. The wind turbine settles down on the maximum power point tracking (MPPT) control method. The maximum available generated power is obtained by the optimum current vector control considering the converter capacity and the losses of generator.Then this paper tries to apply the sensorless control to PMSM. A novel sensorless control strategy is presented for PMSM and the validity of the strategy is confirmed by the experiment.At last, this paper summarized the system and gave the analysis and the prospect for future research about wind generation using PMSM. 更多还原
Research about Vacuum Simulation of Permanent Magnet Linear Motor、Drive Controller and the Protection
Research about Vacuum Simulation of Permanent Magnet Linear Motor、Drive Controller and the Protection
Principle, static attraction, dynamic feature of Breaker with linear motor drive is analyzed. This setup has the virtue of simple structure , reliable performance, smoothly drive, small oscillation, long motion and so on ,which can be widely used in electric switch , breaker and so on . Static flux is computered by FEM widely by now , static force of permanent magnet only used http://www.999magnet.com/products/112-neodymium-standard-state and attraction of both exited current and permanent magnet used are analyzed and computered . This section mainly analyze three structures: three kinds of structures have been analyzed with FEM. Result indicates that C structure has better electromagnetic performance . Magnetic field and force of linear synchronous motor drive are analyzed . A brief introduction and design of linear motor drive are presented . Model and control strategy of hybrid excitation linear synchronous motor is discussed, drive control system is designed and experimented, whose steady current and voltage waveform are measured . This paper have carried on a brief introduction vacuum switch permanent magnetism straight line motor-driven system’s monitor and the maintenance. The processing method has been taken when breakdown of vacuum switch permanent magnetism straight line motor-driven system occurs. At last, the advantage and disadvantage of the design are summarized ,future and spread of the research are forecasted .
Principle, static attraction, dynamic feature of Breaker with linear motor drive is analyzed. This setup has the virtue of simple structure , reliable performance, smoothly drive, small oscillation, long motion and so on ,which can be widely used in electric switch , breaker and so on . Static flux is computered by FEM widely by now , static force of permanent magnet only used http://www.999magnet.com/products/112-neodymium-standard-state and attraction of both exited current and permanent magnet used are analyzed and computered . This section mainly analyze three structures: three kinds of structures have been analyzed with FEM. Result indicates that C structure has better electromagnetic performance . Magnetic field and force of linear synchronous motor drive are analyzed . A brief introduction and design of linear motor drive are presented . Model and control strategy of hybrid excitation linear synchronous motor is discussed, drive control system is designed and experimented, whose steady current and voltage waveform are measured . This paper have carried on a brief introduction vacuum switch permanent magnetism straight line motor-driven system’s monitor and the maintenance. The processing method has been taken when breakdown of vacuum switch permanent magnetism straight line motor-driven system occurs. At last, the advantage and disadvantage of the design are summarized ,future and spread of the research are forecasted .
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